The poem describes street harassment from the point of view of the woman on the receiving end. It begins with a catcall, which the speaker imagines as a weapon: a breathy whistle like a sword leaving its sheath. She understands its meaning "only a little too late," so the warning arrives after the harm has started. The man then blocks her path and pins her in, and the poem suggests she ends up blaming herself, because she wore heels. Her attempt to scream why is quiet, as if even her protest has been muffled.
The mood is tense, claustrophobic, and angry. The final stanza turns on the question "who was she to think" she could walk freely, a bitter line that mimics the way victims are made to doubt themselves. The image of a "little, perfect doll" shows how she is treated as an object for someone else's desire rather than a person. The poem's quiet tone makes that feel more unsettling.